.ui-activity {
  margin-top: 10px;
  margin-bottom: 5px;
  background-color:#fff;
}

.ui-activity .ui-grid-halve {
  padding-top:10px;
}
.ui-activity .ui-grid-halve-img span{
  background-size: contain;
  background-color: #fff;
  background-position: center;
}